Clown SchoolLesson 1 of 6 · two minutes

What a pool is

The money you trade against. Your size moves the chart in proportion to it. That is why pool is on every tile.

The money on the other side

When you buy a coin here you are not buying it from a person. You trade with a pool: a pile of the coin on one side and the chain's quote asset (SOL, ETH or USDC) on the other. Your dollars go in, coins come out, and the mix in the pool shifts. That shift is the chart moving.

Why your size matters

Think of a bathtub. A cup of water barely moves a full tub; the same cup in a sink spills over. Put 50 dollars into a pool 240K deep and the line barely twitches. Put 5,000 into a thin one and you move it yourself, and then you pay for the move you made.

That gap, between the number before your buy and the number it fills at, is slippage. The buy sheet prints the expected slippage for your size on this pool, as a number with its basis, before you sign.

What the site does about it

• Every tile shows the pool beside the change, so you see the depth before you tap.
• A coin is sold here only if it left its launchpad's curve or has a pool of at least $50K: that is rule 2.
• If your amount would move a pool too far, the buy is refused with the number: the pool is too thin for this amount. We do not round the number down for you.
• Selling works the same way in reverse. The read-back shows the move before you sign.

The one thing to keep

Look at the pool before the percent. A big percent on a small pool is a number you may not be able to sell back at.